Question: What { time point } has { population } as { 3.12311e+06 } for { Sohag Governorate }?
Paraphrase: When did Sohag Governorate have a population of 3.12311e+06?
SPARQL (Wikidata): SELECT ?value WHERE { wd:Q30669 p:P1082 ?s . ?s ps:P1082 ?x filter(contains(?x , '3.12311e+06')) . ?s pq:P585 ?value}